ruff format

Author: csparker247

src/zarr/core/group.py

@@ -1312,7 +1312,13 @@ async def nmembers(
             if max_depth is None:
                 return len(self.metadata.consolidated_metadata.flattened_metadata)
             else:
-                return len([x for x in self.metadata.consolidated_metadata.flattened_metadata if x.count("/") <= max_depth])
+                return len(
+                    [
+                        x
+                        for x in self.metadata.consolidated_metadata.flattened_metadata
+                        if x.count("/") <= max_depth
+                    ]
+                )
         # TODO: consider using aioitertools.builtins.sum for this
         # return await aioitertools.builtins.sum((1 async for _ in self.members()), start=0)
         n = 0